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History of the manufacturer  

Sonotone Corporation, Elmsford, New York

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Name: Sonotone Corporation, Elmsford, New York    (USA)  
Abbreviation: sonotone
Products: Model types Others Tube manufacturer

Sonotone was a well known manufacturer of piezoelectric ceramic cartridges and tubes. They also built some audio equipment.


This manufacturer was suggested by Emilio Ciardiello.

Some models:
Country Year Name 1st Tube Notes
USA  56 High Fidelity Amplifier HFA-100   12 W amplifier; 20 to 20,000 Hz within 1 dB. Inputs for ceramic cartridge, tuner, tape and... 
USA  56 Control Unit CU-50   Used with the HFA-100 or with other amplifiers, the CU-50 gives complete chairside tone, v... 
USA  60 HFA-150   Sonotone HFA-150; 15 W, 6 inputs, bass, contour & treble control. 
USA  67 Sonotone 23" 528.52400E 6AQ5A  Tube rectifier is on the schematic but no identified. Blanco y Negro Norma "N". 
USA  51 Hearing Aid 977   Batteries are models 507E 30 volt 'B' and 6E1E 1,5 volt 'A' 
USA  65 Wide-Range Low-Impedance Ceramic Microphone CM-1050WR   50 - 10.000 Hz. 
USA  50 Voltmeter   R=130 Ohm